Paper cutter or trimmer



Oct. 21, 1930. F. E. KUECHLER PAPER CUTTER OR TRIMMER Filed'April 15,1929 /n {Pen Patented Oct. 21, 1930 PATENT OFFICE.

ran!) E. KUECHLER, or ST. LOUIS, MISSOURI PAPER CUTTER OR TRIMMERApplication filed April 15,

This invention relates to devices or machines for use in cutting ortrimming paper to the width desired.

An object of the invention is to provide an improvedidevice or machinefor use in cutting or trimming paper and includinga relatively lightportable frame capable of easy operation and movement by hand and havinga cutting tool mounted thereon for cutting or trimming the paper, incombination with a device functioning as a guide and support for saidframe for engagementwith a gage or track to guide the device or machineduring operation.

Another object of the invention is to provide a device or machine of thetype and character and embodying the features of construction last abovementioned and provided with antifriction rollers or elements foroperating upon the gage or track during manipulation of the device.

Other objects will appear from the follow-' ing description, referencebeing madeto the drawing in which Fig. 1 is a plan View of myimprovedcutting or trimming device. I

Fig. 2 is a side elevation showing the sup,- porting guide operating ona gage or track.

Fig. 3 is a side elevation showing the-opposite side ofthe device. I

Fig. 4 is a vertical cross sectional view on the line 4.-4 of Fig. 2. H

The frame of my improved device or machine comprises a body 1 which, ifdesired, maybe cast and provided on its outer side with a boss 2. Acurved flange 3 ,isforined integral with the inner side of the body 1and is extendedat the rearto form aseat {Lfor a part of the hand of theoperator. The extended seat 4 and a part of the outside-of the body atthe rear have .an appropriately curved flange 5, the upper surfaceof'which is flush with and'forms-a part of the hand rest or handle. Thefront end of the outside flange 5 is formed with a curved wall 6constituting a rest for one of the fingers of the hand. Thus the upperportion of the frame comprising the parts 45 and the formation 6constitute a handle and this handle is shaped 1929. Serial No. 355,050.

properly for the engagement by the hand in operating the device ormachine. 7

The inner side of the body 2 is formed with a ball bearing recess 7 anda bearing enclosure 8 is attached to the outer side of the body byscrews 9 which are removable and replaceable in order to permitdetachment, replacement and repair of the parts.

An axle 10 passes through the boss 2 and has secured on its inner end abearing abutment 11 and on its outer end a duplicate hearing abutment12. These bearing abutments 11 and 12 may be screwed on the axle 10 asshown or otherwise secured thereto in spaced relationship. By screwingthese abutments ll'and 12 on the axle 10 the assembly of the device isfacilitated and expedited. For, when assembling the device the bearingabutment 11 may first be screwed on the axle 10 and said axle passedthrough the hole in the boss 2 to a position in which the abutment 11 eis enclosed within the recess 7. Then the abutment 12 may end of theaxle 10.

A ball bearing device 13- is mounted between the abutment 10 and theadjacent .surface of the boss 2 and a similar ball bearing device 14 ismounted between the abutment 12 and the bearing support 8. Theantifriction elements of the ball bearing 13 operate against theabutment 11 and against the adj acent surfaces of the boss 2,while theantifriction elements of the bearing 14 operate against theabutment 12and the adjacentsurface of the bearingsupport 8. Thus these bearings 13and 14; functionas journal bearingsfor the axle 10 and also as thrustbearings preventing longitudinal movement of said axle in eitherdirection. The outerend of the axle 10 has a nut 15 screwed thereonagainst a washer 16 which is clamped against the endof the abutment 12.v

be screwed onto the'outer 1 A cutting disc l7 forthe paper isirotativelymounted on the inner end of the axle 10. A

washer 18 is mounted on the axle 10 between the disc 17 and the end ofthebearing abutment 11. A washer 19 is clamped against said endof theaxle lObya screw2o-which is screwed intothe inner endof the axle 10. Thescrew 20 and washer 19 the cutting 17 011 the axle 10 and are removableand replaceable to permit separation of the parts for any desiredpurpose. The cutting disc 17 is esentially of a diameter so that itslower peripheral portion is always well below the lower edge of the body1, as must be clear from Figs. 3 and 4.

The supporting guide for this device or machine comprises a bar 21mounted on a pivot 22 in the front end of the body 1 beyond and out ofcontact with the disc 17. The opposite end of the bar 21 is connectedwith. the body 1 by a screw 23 passing through an arcuate slot 24 thatis concentric with the axis of the pivot 22. The screw 23 is screwedinto the inner side of the end portion of the bar 21 and thus permits aturning movement of said part about the axis of said pivot 22 and limitsextent of such turning movement. A leaf spring 25 has its front lowerend at tached to the bar 21 by a screw 26 and its rear end engagedagainst the under side of the handle part 4 (Fig. 2). The power andenergy of said spring 25 is exerted and utilized to raise the rear endof the body 1 to the full extent permitted by the screw 23. But saidspring 25 will yield to permit the rear end of the body'l to movedownwardly. The pivot 22 and the screw 23 are removable and replaceableto permit detachment of the bar 21 from the frame. The inner side edgeof the bar 21 is notched at 27 to avoid contact with the head of thescrew 20. A roller 28 is mounted on an axle 29 supported by an arm 30projecting rearwardly from the rear end of thebar 21. The axle 29 isparallel with the axle 10. A similar roller 31 is mounted on an axle 32projecting laterally from an arm 33 extending from the front end of thebar 21. The axle 32 is parallel with the axles 10 and 29.

A plate 34 is attached to the outer side edge of the bar 21 by screws 35which are removable and replaceable in order to permit detachment andreplacement of the plate 3-1. The lower edge of the plate 3 1 extendsdownwardly beyond the lower side of the bar 21 and is formed with aninwardly turned flange 36 for engagement under the flange 37 of thetrack guide or gage 38.

In use the track guide or gage 38 which is in the form of an elongatedbar is placed upon the paper with the edge 39 at the line along which tocut or trim the paper; The cutting device or machine is then placed uponthe track guide or gage 38 by hooking the flange 36 under the lip orflange 37 of the track guide or gage, in which position the rollers 28and 32 are upon the track guide or gage and form antifriction devicesfacilitating the movement of the machine. In the adjustment mentionedthe flat surface of the cutter 17 is against the edge 39 and cannotdeviate therefrom appreciably. WVhen the machine is thus placed upon thetrack, pressure is applied by the hand to the handle portion 47-5 of themachine so as to overcome the resistance of the spring 25 and push thelower edge of the cutter 17 into and through the paper. Then the machineis moved along the track or gage, causing the cutter 17 to cut or trimthe paper along the line at the edge 39.

In practice I have found that this machine greatly facilitates andexpedites the cutting or trimming of wall paper and the work can beperformed with greater precision than by other devices with which I amfamiliar. I am aware that the construction and arrangement of the partsmay be varied without departure from the nature and principle of theinvention. 1 do not restrict myself unessentially or otherwise thanasrequired by the appended claims.

I claim 1. A device of the character describedcomprising a frame body,an axle extending through said frame body, two spaced'abutments rigid onsaid axle, bearings mounted between said abutments and the frame bodyand cooperating therewith to support said axle, a cutting disc rigid onone end of said axle and projecting below the plane of the lower side ofsaid frame body, a bar pivotally connected with the front portion ofsaid frame body, rollers supported by said bar adjacent to the endsthereof, a flange projecting laterally from the upper portion of theframe body above said cutting disc and extending toward the rear of saidframe body, and a spring between said flange and said bar pressing therear end of the bar downwardly from said flange.

2. A device of the character described comprising a frame body, an axleextending through said frame body, two spaced abutments rigid on saidaxle, bearings mounted between said abutments and-the frame body andcooperating therewith to support said axle,'a cutting disc rigid on oneend of said axle and projecting below the plane of the 1 lower side ofsaid frame body, a bar pivotally connected with the front portion ofsaid frame body, rollers supported by said bar adjacent to the endsthereof, a flange projecting laterally from the upper portion of the fframe body above said cutting disc and extending toward the rear of saidframe body, a spring between said flange and said bar pressing the rearend of the bar downwardly from said flange, and an element in connectionwith said bar for engaging a guide to hold said device in connectiontherewith.

FRED E. KUECHLER.

